Download and install Revo Uninstaller
Double click the Revo Uninstaller icon on your desktop to start the program Scroll through the listed programs and Right Click on the program you wish to uninstall. In your case InBox.com.
From the pop out menu choose Uninstall Click Yes to the confirmation dialogue In the next window select the Advanced mode Click Next to start uninstalling the program Answer Yes to confirm the uninstall
When the program has completed the four steps, click Next to allow the program to search for leftovers - Once complete, click Next, then Finish Repeat the above steps for any other programs you wish to remove.